Mikey, obsessed with the video game Helix, goes crackers when he finds out that the sequel is being released. But at the mall, Jammerhead and the Street Phantoms hijack the delivery trucks full of Helix 2 and frame the turtles for the crime.
Turtle X is on the rampage throughout New Manhattan - but Cody insists he has nothing to do with it. It turns out the fugitive Darius Dun planted a "Trojan Horse" virus in Cody's exo-armor and is now controlling Turtle X to enact his revenge on his nephew and the Turtles. The guys have to work together to take down the deadly Turtle X - a prospect made all the more difficult when Cody gets trapped inside!
The Turtles enter a tricked-out Hovershell in a cross-country road race that pits the latest high tech experimental vehicles against one another. But the fun and games quickly turn serious when Triple Threat decides to crash the race and steal all the cars.
When President Bishop is attacked by mysterious underground monsters, he enlists the help of the Teenage Mutant Ninja Turtles. Our fearless green guardians must rescue Bishop before he loses his head (literally!) to a sinister figure from the Turtles' past... Baxter Stockman!
Raphael has contempt for Michelangelo's geeky toy collection, but when the leader of the Inawashi Gunjin comes to the Turtles for help with a malevolent alien, Raphael must think like a geek to beat Aramzedo, the ultimate collector.
Torbin Zixx convinces the Turtles to help him recover an experimental matter transmitter that he was forced to give to Boss Zukko to pay off an old debt. The fate of the world may rest on the success of their mission. But can they trust Zixx?